Sets user defined data associated with the given connection.
This function allows to store arbitrary data inside the given connection. This data is store in a hash string indexed.
If value is NULL, this will be considered as a removing petition for the given key.
See also vortex_connection_set_data_full function.
|connection ||the connection to set data. |
|key ||the string key indexing the data. |
|value ||the value to be stored. |